16289420895 has 128 divisors (see below), whose sum is σ = 32400552960. Its totient is φ = 7698240000.

The previous prime is 16289420887. The next prime is 16289420897. The reversal of 16289420895 is 59802498261.

It is a happy number.

16289420895 is a `hidden beast` number, since 1 + 62 + 89 + 420 + 89 + 5 = 666.

It is not a de Polignac number, because 16289420895 - 2³ = 16289420887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16289420897) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 10048185 + ... + 10049805.

It is an arithmetic number, because the mean of its divisors is an integer number (253129320).

Almost surely, 2^16289420895 is an apocalyptic number.

16289420895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16289420895 is a deficient number, since it is larger than the sum of its proper divisors (16111132065).

16289420895 is a wasteful number, since it uses less digits than its factorization.

16289420895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1814 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The spelling of 16289420895 in words is "sixteen billion, two hundred eighty-nine million, four hundred twenty thousand, eight hundred ninety-five".